Critical event based real-time shop-floor production performance analysis

In order to improve the real-time monitoring and control of manufacturing execution system, this paper takes the shop-floor as the research object. Combined with the technology of internet of things and critical event model, a real-time shop-floor production performance analysis method is proposed. Under this architecture, a hierarchical mechanism of event process is put forward, which switch the acquisition process of production performance to transformation between events of different level. Finally,the application of the proposed event model to implement for the progress monitoring of work in process is discussed in detail.